Randy Kendzior, Dell, Inc.

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Wireless Technology DiscussionMassachusetts
Digital Government Summit

• Randy Kendzior, Dell, Inc.
• September 24, 2004

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Wireless Networks A Simple Overview
WLAN
WPAN
WWAN
Personal space
Home, Campus, Hotspots
Metros, Countries, Global
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Current WLAN Technology Comparisons

• 802.11b Broadly deployed, lowest cost solution
  moving to cell phones and handhelds
• 802.11b/g - New mainstream WLAN solution, best
  for majority of mobile workers
• 802.11a - Provides added capacity in crowded
  enterprise environments
• 802.11a/b/g Future-proof for maximum capacity
  and compatibility

802.11b 802.11a 802.11b/g 802.11a/b/g
Maximum Data Rate 11 Mbps 54 Mbps 54 Mbps 54 Mbps
Frequency Band 2.4 GHz 5 GHz 2.4 GHz 5/2.4 GHz
Channels 3 12 3 12/3
Typical Range Up to 300 Up to 180 Up to 300 Up to 180/300
802.11b Compatible Yes No Yes Yes
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WLAN Technology Roadmap
WLAN standards will emphasize throughput, QoS,
security management

• Migration to dual-band
• Faster data rates with .11n

802.11g
Wi-Fi 802.11b
802.11n
Radio
802.11a

• VoIP streaming support

WME (eDCF)
802.11e
QoS

• Strong AES encryption
• Port-based authentication

WEP
WPA (TKIP)
802.11i (AES)
Security
802.1x

• Cisco interoperability
• Measurements regulatory

802.11k
Other
802.11d
802.11h
2006
2005
2004
Past
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WLAN Market Overview
WLAN Market Overview

• Wireless technologies, characterized according to
  range and mobility, will evolve to higher data
  rates
• WLAN market growth will be driven by improved
  costs, capabilities usages
• WLAN standards will address throughput, QoS,
  security and management
• Security remains a key perceived barrier to
  enterprise WLAN adoption
• WLAN security solutions exist today and will be
  enhanced in the future

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Wireless Technology Roadmap
Wireless technologies, categorized by mobility
and range, will continue to evolve to higher data
rates...
Increasing Range and Mobility ?
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Wireless Application Landscape
Wireless technologies, categorized by mobility
and range, will continue to evolve to higher data
rates...
Text, Graphics, Internet, Compressed Audio
Multi-channel Video HDTV
Data, Streaming Video, Internet, Hi-Fi Audio
MAN
802.16e
802.16a
Long Range
WAN
GSM/CDMA
MMDS/LMDS
GPRS/3G
802.11b/g
LAN
802.11n
802.11g/a
Short Range
Bluetooth 2 (MR)
UWB
Zigbee
PAN
Bluetooth 1.1
Low Data Rate
High Data Rate
Very high Data Rate
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Wireless Everywhere and Anywhere
Wireless will be pervasive, enabling seamless
network and device connectivity
My_Network My_Data
GPS
WWAN
WLAN
BWA
RFID
WPAN

• ?Airport
• Customer
• Office
• Home

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UWB Usage Scenarios Digital Home
UWB usage models evolving for Cable replacement
in the Digital Home
UWB
UWB
UWB
LAN/WLAN Network
UWB
UWB
Broadband
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Acronym Anxiety
802.11a
802.11n
WEP
TKIP
WiMAX
Zigbee
Bluetooth
EAP
RADIUS
CCX
802.11g
802.11b
802.11h
802.11i
UWB
AES
CDMA
PEAP
QoS
Wi-Fi
802.11e
802.16
GPRS
UWB
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Thank You